SolarMax Technology shares surge 12.75% premarket after securing 400MWh BESS EPC agreements in Puerto Rico.

Solarmax Technology surged 12.75% in premarket trading following the announcement that it secured two EPC agreements for 400MWh total BESS capacity in Puerto Rico. The contracts, disclosed on January 6, 2026, represent a significant expansion of the company’s grid-scale energy storage capabilities and reinforce its position in the growing renewable infrastructure sector. While broader industry developments, such as Australia’s long-duration storage prioritization and U.S. virtual power plant initiatives, reflect positive momentum in the sector, the direct catalyst for Solarmax’s premarket rally was the Puerto Rico deal, which underscores its ability to secure large-scale projects and aligns with its strategic focus on energy storage solutions.